Shoe sole pounding machine



Nov. 26, 1940.

T. H. SEELY SHOE SOLE POUNDING MACHINE Filed Aug. 8, 1959 Patented Nov. 26, 1940 SHOE SOLE POUNDING MACHINE Thomas H. Seely, Melrose, Mass, assignor to United Shoe Machinery Corporation, Borough of Flemington, N. J., a corporation of New Jersey Application August 8, 1939, Serial No. 289,005

6 Claims.

This invention relates to a machine for operating upon shoe bottoms and is illustrated as embodied in a machine for pounding the marginal portions of shoe soles for the purpose of providing close shanks.

According to the present invention a pair of pounders adapted to operate upon the margin of a shoe sole are reciprocated alternately, said pounders preferably serving alternately as abut- 10 ments against which the sole may be held. In

the illustrated machine the work engaging surfaces of the pounders are so shaped that they may engage the base of the channel flap of a channeled sole so that, in addition to serving as abutments against which the shoe may be held to maintain it in proper heightwise position, they may also serve alternately as guides for the lengthwise movement of the shoe. In order to provide for shoes the soles of which are stitched aloft and consequently have no channel, a guide mounted on the frame of the machine may be adjusted into operative position to engage the edge of the sole.

These and other features of the invention in-' cluding certain details of construction and combinations of parts will be described as embodied in an illustrated machine and pointed out in the appended claims.

In the drawing: 80 Fig. l is a front elevation of the machine;

Fig. 2 is a sectional view of a portion of the machine on the line 11-11 of Fig. 1;

Fig. 3 is a view similar to Fig. 2, illustrating the adjustable guide member for the edge of a sole; and

Fig. 4 is a cross-sectional view taken at right angles to Fig. 3.

The frame ll] of the machine includes a pair of brackets l2 and 14 in which are slidably received the pounders l6 and I8. These pounders are arranged at an angle to each other in such a manner that the lower portions thereof will act upon adjacent portions of the work. The pounders are formed at their upper ends with heads 28. Springs 22 having their upper ends carried by spring retainers 24 act upon the heads 20 of the pounders to urge the pounders downwardly. The spring retainers 24 are adjustably carried by screws 26 threaded through a bracket 28, the adjusting screws 26 serving to adjust the force with which the springs 22 act upon the pounders l6 and I8.

Carried by the bracket l4 are a pair of cupshaped members 30 one of which is shown in cross-section in Fig. 2, each of these members being provided with a central passageway for guiding the pounders, said passageway extending up through the base of the cup and through a hollow projection 34 which is integral with the base. A plurality of resilient washers 32 are '5 carried by the members 30 and are maintained out of engagement with the pounders by means of the hollow projection 34. These resilient washers act as bumper members against which the heads 23 of the pounders will strike when '10 the pounders are forced downwardly by means of the springs 22 and serve to limit the downward movement of the pounders.

As indicated in Fig. 2 the forward edges of the pounders are at somewhat less than a right angle 15 with respect to the lower surfaces thereof to facilitate the positioning with respect to the pounders of a shoe having a channel flap in its sole, the forward edges'of the pounders engaging alternately the base of the channel flap. Thus, the 20 proper guiding of the shoe sole with respect to the pounders may be easily eifected.

Suitably secured to each of the pounders l6 and I8 as by means of a key 40 (Fig. 2) is a cam P follower 42. These cam followers cooperate with cams 46 and 48 carried by a shaft 50 journaled in bearings 52 and 54, the opposite end of this shaft carrying a pulley 56 which may be belted to a suitable source of power. As indicated in I Fig. 2 the cams 46 and 48 are spaced from -30 each other and the cams are so shaped that after each pounder has been moved upwardly to the position assumed by the pounder IS in Fig. 2, the cam will move out of engagement with the cam follower as the cam rotates in a clockwise direc- 35 tion (Fig. 2), thus releasing the cam follower so that the pounder may move downwardly under the influence of its spring 22 to strike a sharp blow on the channel bed. The 180 displacement of the cams causes alternate operation of the "4b pounders so that as one pounderis moving downwardly under the influence of its spring 22 the other pounder is at rest, and the pounder which is at rest forms an abutment and guide for the Work being acted upon.- It is desirable-in order 15 that an effective pounding or beating action take place, that the work be always within the range of the pounders, and for this purpose the inner portions 49 of the cams 46 and 48, or those portions adjacent the axis of the shaft 5!! are ar-' 50 ranged to engage the cam followers 42 a short time after the release of the springs 22 to lift the pounders slightly from their lowermost position. The portions 49 of the cams that cause this initial lifting movement of the pounders are arranged 55 concentrically with respect to the shaft 50 so that the pounders, after this initial lifting movement has taken place, will remain stationary until the other pounder has been released to strike a blow upon the work. Each cam, therefore, operates to lift one pounder after it has been at rest upon the work and has served to guide the work, to cook the spring 22 associated with the pounder, and then to move out of engagement with the cam-follower whereupon the spring forces the pounder downwardly into engagement with the work, the other pounder being at rest and forming a guiding means for the work during this downward movement of the aforementioned pounder. Shortly after the pounder has struck a blow on the work, it is lifted slightly and remains in this position so that the work which is held against this pounder may be moved into the range of the other pounder and may be in a position to be acted upon thereby. One of the pounders is always in a down position so as to act as aguide and abutment for the work. The .rear surface of each of the cam followers 52 is suitably shaped to cooperate with a block 60 so erally with respect to the pounders.

as to prevent rotational movement of the pounders lfiand I8.

In case the machine be intended for use with soles which are stitched aloft and have no channel flap, a guide member 62 (Figs. 3 and 4) may .be provided for engaging the edge of the sole so that the sole may be properly positioned lat- This guide 62 is illustrated as being ad-justably connected to a downwardly extending bracket 64 which receives ascrewtfi, said screw 66 passing through a slot 66 in the guide member 62 and securing the guide member in the proper position with respect to the pounders l5 and I8. If it is not desired to utilize this guide member it may be I Qlwithdrawn from operativeposition. When the guide -62 is used, the pounders l8 and I8 alternately act as abutments against which the sole of the shoe may be maintained for the purpose of holding the shoe in the proper vertical position with respect to the pounder which is to be moved downwardly by the associated spring 22. When a shoe having "a channel flap in the outer sole thereof is to be acted upon this guide member '62 may be dispensed'with and the pounders will guide the shoe by engaging the base of the channel flap in addition to serving, by engagemerit w'ith the channel bed, as abutments against which the work is held.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent of the United States is:

to pound the marginal portion of the sole, the pounding surfaces of said pounders being arranged at acute angles to the forward edges of the pounders to facilitate the engagement of the pounders with the base of the channel flap for the purpose of guiding the sole with respect to the pounders, and means for alternately reciprocating said pounders to efiect a pounding action upon the channel bed.

3. In a machine for operating upon shoe bottoms, a pair of pounders arranged to pound the marginal portion of the sole of a shoe, the pounding surfaces of said pounders being arranged at acute angles to the forward edges of the pounders to facilitate the engagement of the pounders with the base of the channel flap of the sole, and means for alternately reciprocating said pounders, said means being arranged to maintain each pounder at rest while the other pounder is acting upon the sole so as to form an abutment and guide for the sole.

4. In a machine for operating upon shoe bottoms, a pair 'of pounders arranged to pound the marginal portion of a shoe sole, and 'means'for alternately reciprocating said pounders, said means being arranged to maintain each pounder at rest in a position slightly retracted from its extreme pounding position while the other pounder is moving in a direction to pound the sole.

5. In a machine for operating upon the channeled sole of a shoe, a pairof pounders arranged to pound the channel bed, and means for alternately reciprocating said pounders, said means being arranged to maintain each pounder at rest in a position slightly retracted from its extreme pounding position while the other pounder is moving in a direction to "pound the channel bed whereby the sole may always be held in engagement with one of said pounders, said pounders being'shaped to engage the base of the channel 'fiap' so that the sole of the shoe maybe guided by the pounder which is at rest.

6. In a machine for opera-ting upon shoe bottoms, a pair of pounders having pounding surfaces adjacently disposed with respect to each other, means supporting said pounders for sliding movement, springs urging said pounders in one direction, cam-followers carried by said pounders, cams cooperating with said cam-followers for causing movement of said pounders in the opposite direction, said cams being so arranged as to cause alternate movement of said pounders against the force of said springs and alternately to move out of engagement with said cam-followers to permit rapid movement of the pounders under the influence of said springs, said cams being shaped to move each of said pounders a short distance against the force of said springs following a pounding movement thereof and to hold that pounder in this position until the other pounder has been subjected to a rapid movement under the influence of its associated spring.

THOMAS H. SEELY. 

